Continuous hydro-extractor.



Patented may i3, |902.

L. ATwOnD. CONTINUOUS ,HYDRO-EXTRACTR.

(Application filed May 15, 1901.)

3 Sheets-Sheet I.

(N0 Model.)

M565.-- 76 XT Patnted May I3, |902..

. L. ATWUUD. EDNTINUOUS HYDRO-EXTRACTOR.

3 Sheds-Sheet 2.

(Nu Model.)

We Nbwms Firms co.. Fumo-umu. wAsHxNmou. u. c4

No'. 70`0,|I2. A Patented May I3, |902..

L. ATWUDD. l CONTINUOUS HYDRO-EXTRACTOR.

(Application led May 15, 1,901.) (No Model.) 3 Sheets-Sheet 3.

UNITED STATES v PATENT OFFICE..

LEONARD ATWooD, or PHILADELPHIA, PENNSYLVANIA.

CONTINUOUS HYDRO-EXTRACTOR.

SPECIFICATION forming part of Letters Patent No. 700,112, dated May 13, 1902.

Application filed May 15,1901. Serial No. 60,372. (No modali:

To @ZZ whom,- L't mttyconcerc:

Be it known that l, LEONARD A'rwooD, a citizen ofthe United States, residing in Philadelphia, Pennsylvania, have invented certain Improvements in Continuous Hydro-Extractors, of which the following is a specification.

My invention relates to certain improvements in hydro-extractors used in breweries, paper-mills, laundries, sugar-refineries, dac.,

wherein moisture is to be extracted from ma-y the construction of machines of the character described, so that the material can be fed to the machine and discharged therefrom con` tinuously, and at the same time to provide means whereby the said material can'be thoroughly cleaned by causing` Water or other fluidto be projected against it.

In the accompanying drawings, Figure l is a vertical sectional view of my improved hydro-extractor. Fig. 2 is a sectional plan view on the line 2 2, Fig. 1. Fig. 3 is a sectional plan view on the line 3 3, Fig. l, and Fig. et is aview showing the location of my improved apparatus in connection with a system of tanks or receivers.

A is the casing of the apparatus, supported on a suitable foundation-plate A', and in this foundation-plate is a step-bearing c for a vertical driving-shaft C, provided with a bearing c at its upper end. On the upper end of this shaft is a drivingpulley C', through which motion is given to the said shaft.

Secured to the shaft Ais a base-plate B, a portion of this plate being in thev form of a wheel having a hub b, spokes b", and a rim b2. The spokes are in the form of blades and are set onan incline, as shown in Fig. 3, so that any Vmaterial coming in contact with said blades Will be quickly removed from the casing and discharged through the outlet-openings tt in the bottom plate AZ The base-plate B carries an outer revolving casingB, on which is supported the internally-flanged ring`B2, which has extending from its lower 'flange-to the.V iiange b3 of the base-plate B'a conical screen E, supported at the center by a ring E', having perforations e. Stayrods e' are mounted back of the screen E to support the same against pressure of the material being acted upon. In the casing B/ are openings e2, which allow for the escape of the liquor extracted from the material.

1 Mounted loosely on the shaft C within the conical screen E is a frame D. This frame is suspended by ropes or chains g, which pass around pulleys g and have attached to them counterbalance-weights G, by means of which the said frame can be raised and lowered at will Within the casing. The frame D has a perforated conical shell d, and this shell is supported at intervals by horizontal partitions d, dividing the frame in the present instance into four compartments F F .F2 F3, and these several compartments are supplied with water or other fiuidthrough pipes f f' f2 f3, respectively, connected by flexible sections of tubing to a supply-main D'. The perforations in the shell d are preferably so formed as to project the water downward against the screen E.

Extending from the bottom compartment of the frame D are two or more pipes f4 with vtheir ends turned out, so as to force water against the bottom portion of the screen and cause the material as it is forced down the screen A to be dislodged and fall into lthe path of the rapidly-revolving blades h.

In operation the materialis fed into the space between the screen E and the frame D through a 'supply-pipe'H and the waste liquid is carried off through the pipe I, as clearly shown in Fig. 4, While the material from which the liquid is extracted is discharged through the openings or into a receiver M, situated beloW the hydro-extractor. If, for instance, the hydro-extractor is used'in the manufacture of paper, a plant such as shown in Fig. t may be used, in which A is the( extractor, M is a tank situated below the same, N is a second tank situated alongside of the tank M, and P is a beating-engine connected to said tank N through a pipe p. l

Situated above thehydro-extractor istank Q, from which the Vmaterial may flow to the extractor through the passage q, the said tank being connected to a centrifugal pump R by means of a pipe o", and this pump in turn is connected to the tank N bya pipe 11 and to the tank M by a pipe r2. The two pipes r' r2 and the pipe 7* are each provided with a valve.

S is an overflow-pipe leading from the chest or tank Q and communicating with valved branch pipes s s', one leading to the tank M and the other to the tank N.

I is the waste-pipe leading from the hydroextractor A, and D is a water-supply pipe communicating with the several feed-pipes in connection with the compartments in the frame D.

By this apparatus material can be fed in a continuous stream through the extractor, and for this purpose I may employ any number of beating-engines P, discharging into the tank M, the contents of this tank being pumped by the centrifugal pump directly into the chest Q, which feeds the hydro extractor. The said extractor discharges the material directly into the tank M, and, if desired, the tank N may be cut off and the material in the tank M passed over and over again through the extractor' by a proper adjustment of the valves. Thus in treating such material as newspaper-stock, which contains a considerable amount of ink, the ink can be thoroughly extracted from the pulp, as the Water or other fluid projected against the thin layer of pulp on the screen E washes the pulp, causing the waste or dirty water to pass into the space between the screen E and the casing on the frame D and to the Waste-pipe. The water can be projected from the casing against the pulp on the screen in such quantities as to dislodge the pulp and cause it to pass down through the extractor' in spite of and against the centrifugal force which would otherwise cause it to move upwardly on the screen E.

I claim as my inventionl. A hydro-extractor having a perforated conical shell, a conical water-chamber within said shell and means for forcing Water into the chamber and through perforations in the walls thereof, with a device in the lower portion of shell for facilitating the removal of material therefrom after its liquid has been extracted, substantially as described.

2. A hydro-extractor having a casing, a perforated shell Within the same, a water-chamber within the shell having perforations in its walls and a device in the lower portion of the shell for facilitating the removal of material therefrom after its liquid has been extracted, substantially as described.

3. The combination in a conical perforated casing, means for revolving the same, said casing having an open bottom, a bladed wheel in the bottom, means for supplying material to the shell, a conical water-receptacle having a perforated body, and means for feeding water to said shell, substantially as described.

4. The combination in a conical perforated casing, of means for revolving the same, said casing having an open bottom, a bladed wheel in the bottom, means for supplying material to the shell, a conical water-receptacle having a perforated body, and means for feeding water to said shell, the body of said water-casing having inclined discharge-openin gs, substantially as described.

5. The colnbination in a conical perforated casing, means for revolving the same, said casing having an open bottom, a bladed wheel in the bottom, means for supplying material to said shell, a conical water-receptacle having a perforated body, and means for feeding water to said shell, the body of said Water-casing having inclined discharge-openings, with a discharge-pipe at the bottom for loosening the material so that it will pass away from the machine, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

LEONARD AT WOOD.

Vitnesses:

WILL. A. BARR, Jos. IT. KLEIN. 

